I used to fukk with that thread but then I realized that thread and those dudes in it are the equivalent to the woman who sit around all day talking shyt on men and how they don't need a man (man haters). And those type of hurt men and women arent helping the problem they're just making it worse.
You can't carry your past relationships into your new one. You're just punishing the next one for the mistakes someone made from your past. I mean its understandable though. After you get hurt you put your guard up. Its a natural defense just like when someone punches you in the mouth you bring your hands up. But if you always have your guard up you'll never let anyone in and to love you have to let someone in.
My guess is those dudes just got burned before and now feel some sort of way. I know I was there. But living like that ain't no way to live. Its unfair to the person you're trying to start a new relationship with but most of all its unfair to you.